EP1464918A3 - Method and apparatus for measuring the position of a magnet relative to a measuring place - Google Patents

Method and apparatus for measuring the position of a magnet relative to a measuring place Download PDF

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Publication number
EP1464918A3
EP1464918A3 EP04003793A EP04003793A EP1464918A3 EP 1464918 A3 EP1464918 A3 EP 1464918A3 EP 04003793 A EP04003793 A EP 04003793A EP 04003793 A EP04003793 A EP 04003793A EP 1464918 A3 EP1464918 A3 EP 1464918A3
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EP
European Patent Office
Prior art keywords
measuring
magnetic field
magnet
measuring location
field strengths
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP04003793A
Other languages
German (de)
French (fr)
Other versions
EP1464918A2 (en
EP1464918B1 (en
Inventor
Martin Schaller
Wolfgang Bass
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seuffer GmbH and Co KG
Original Assignee
Robert Seuffer GmbH and Co KG
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Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=32842207&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1464918(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Robert Seuffer GmbH and Co KG filed Critical Robert Seuffer GmbH and Co KG
Publication of EP1464918A2 publication Critical patent/EP1464918A2/en
Publication of EP1464918A3 publication Critical patent/EP1464918A3/en
Application granted granted Critical
Publication of EP1464918B1 publication Critical patent/EP1464918B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage

Abstract

Ein Verfahren und eine Vorrichtung zur Messung der Position, welche ein Magnet (2) gegenüber einem im Magnetfeld (3) angeordneten Messort (4) aufweist, wobei der Magnet (2) oder der Messort (4) eine vorbestimmte Position bei der Messung hat und am Messort (4) in drei orthogonalen Achsen (X,Y,Z) die Magnetfeldstärken gemessen werden und aus der Abweichung der gemessenen Ist-Werte der Magnetfeldstärken von Referenz-Magnetfeldstärken, bei denen der Magnet (2) und der Messort (4) bestimmte Referenzposition bzw. Nullposition aufweisen, dass die Positionsinformation enthaltende Signal gebildet wird. Ebenso ist vorgesehen, die Gradienten des Magnetfeldes zu messen und mit Referenzgradienten zu vergleichen.

Figure imgaf001
A method and a device for measuring the position which a magnet (2) has in relation to a measuring location (4) arranged in the magnetic field (3), wherein the magnet (2) or the measuring location (4) has a predetermined position during the measurement and at the measuring location (4) in three orthogonal axes (X, Y, Z) the magnetic field strengths are measured and from the deviation of the measured actual values of the magnetic field strengths of reference magnetic field strengths at which the magnet (2) and the measuring location (4) determined Reference position or zero position that the position information containing signal is formed. It is also provided to measure the gradient of the magnetic field and to compare it with reference gradients.
Figure imgaf001
EP04003793.9A 2003-04-01 2004-02-19 Method and apparatus for measuring the position of a magnet relative to a measuring place Expired - Lifetime EP1464918B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003114838 DE10314838A1 (en) 2003-04-01 2003-04-01 Method and device for measuring the position which a magnet and a measuring location have in relation to one another
DE10314838 2003-04-01

Publications (3)

Publication Number Publication Date
EP1464918A2 EP1464918A2 (en) 2004-10-06
EP1464918A3 true EP1464918A3 (en) 2008-12-10
EP1464918B1 EP1464918B1 (en) 2016-11-16

Family

ID=32842207

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04003793.9A Expired - Lifetime EP1464918B1 (en) 2003-04-01 2004-02-19 Method and apparatus for measuring the position of a magnet relative to a measuring place

Country Status (2)

Country Link
EP (1) EP1464918B1 (en)
DE (1) DE10314838A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005009381A1 (en) 2005-03-01 2006-09-14 Robert Seuffer Gmbh & Co. Kg Method and device for determining the respective position of at least one measuring location in a permanent magnetic field
DE102007001745A1 (en) 2007-01-11 2008-07-17 Robert Seuffer Gmbh & Co. Kg Joystick, has sensor unit with magnetic field sensor that is movable with lever, where magnetic field sensor measures magnetic field strength in three orthogonal spatial directions based on lever positions
DE102007028739B4 (en) 2007-06-21 2012-02-23 Seuffer Gmbh & Co.Kg Washing machine
US8122783B2 (en) 2008-02-22 2012-02-28 Sauer-Danfoss Inc. Joystick and method of manufacturing the same
EP2369291B1 (en) * 2010-03-10 2015-09-23 PolyResearch AG Sensor for height measurement
DE102010003292A1 (en) 2010-03-25 2011-09-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Sensor arrangement and method for determining a magnetization device of a transmitter magnet
DE102010034482A1 (en) * 2010-08-10 2012-04-19 Carl Zeiss Industrielle Messtechnik Gmbh A sensor arrangement and method for determining a spatial position of a first part relative to a second part
DE202011002747U1 (en) 2011-02-15 2012-05-21 Robert Seuffer Gmbh & Co. Kg Device for determining the respective position of at least one measuring location in a magnetic field
US8717010B2 (en) 2011-08-19 2014-05-06 Infineon Technologies Ag Magnetic position sensors, systems and methods
DE102011120998B4 (en) * 2011-12-14 2018-06-07 Paragon Ag Measuring arrangement for determining the distance to an alternating magnetic field source and method for measuring the distance between a magnetic sensor arrangement and an alternating magnetic field source
EP2829846B1 (en) 2013-07-23 2017-12-06 Seuffer GmbH & Co. KG Method and device for determining position with external field compensation
WO2016096824A1 (en) * 2014-12-15 2016-06-23 Inventio Ag Method and system for determining the position and the orientation of a lift car
JP6323699B1 (en) 2017-03-22 2018-05-16 Tdk株式会社 Angle sensor and angle sensor system
WO2019086367A1 (en) * 2017-10-30 2019-05-09 Trafag Ag Differential mode height sensor
DE102020213886B3 (en) 2020-11-04 2022-05-05 Zf Friedrichshafen Ag magnetic sensor system
CN114325511B (en) * 2021-12-07 2024-02-09 上海卫星装备研究所 Method and system for calculating co-point design of fluxgate magnetometer sensor

Citations (4)

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US5622169A (en) * 1993-09-14 1997-04-22 University Of Washington Apparatus and method for locating a medical tube in the body of a patient
US5762064A (en) * 1995-01-23 1998-06-09 Northrop Grumman Corporation Medical magnetic positioning system and method for determining the position of a magnetic probe
US6129668A (en) * 1997-05-08 2000-10-10 Lucent Medical Systems, Inc. System and method to determine the location and orientation of an indwelling medical device
US6385482B1 (en) * 1996-03-27 2002-05-07 Mednetix Ag Device and process for determining position

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DE2814551C2 (en) * 1978-04-04 1986-03-13 Siemens AG, 1000 Berlin und 8000 München Device for measuring the location, the position and / or the change in location or position of a rigid body in space
US4622644A (en) * 1984-05-10 1986-11-11 Position Orientation Systems, Ltd. Magnetic position and orientation measurement system
FR2586302B1 (en) 1985-08-13 1988-02-12 Commissariat Energie Atomique METHOD FOR LOCATING AN OBJECT AND DETERMINING ITS ORIENTATION IN SPACE AND DEVICE FOR IMPLEMENTING IT
US4849692A (en) * 1986-10-09 1989-07-18 Ascension Technology Corporation Device for quantitatively measuring the relative position and orientation of two bodies in the presence of metals utilizing direct current magnetic fields
US5160918A (en) 1990-07-10 1992-11-03 Orvitek, Inc. Joystick controller employing hall-effect sensors
DE19607199C2 (en) * 1996-02-26 1999-11-25 Robert Seuffer Gmbh & Co Adjustment device
US5694040A (en) * 1996-07-02 1997-12-02 Honeywell Inc. Magnetic sensor circuit with two magnetically sensitive devices
US6263230B1 (en) 1997-05-08 2001-07-17 Lucent Medical Systems, Inc. System and method to determine the location and orientation of an indwelling medical device
EP0916074B1 (en) 1997-05-29 2003-07-30 AMS International AG Magnetic rotation sensor
EP0947846B1 (en) 1998-03-30 2005-11-02 Sentron Ag Magnetic field sensor
US6529114B1 (en) * 1998-05-27 2003-03-04 Honeywell International Inc. Magnetic field sensing device
US6304082B1 (en) * 1999-07-13 2001-10-16 Honeywell International Inc. Printed circuit boards multi-axis magnetometer
JP2001027506A (en) 1999-07-14 2001-01-30 Tokin Corp Magnet position transducer
JP4722252B2 (en) 1999-09-22 2011-07-13 富士通コンポーネント株式会社 Coordinate input device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5622169A (en) * 1993-09-14 1997-04-22 University Of Washington Apparatus and method for locating a medical tube in the body of a patient
US5762064A (en) * 1995-01-23 1998-06-09 Northrop Grumman Corporation Medical magnetic positioning system and method for determining the position of a magnetic probe
US6385482B1 (en) * 1996-03-27 2002-05-07 Mednetix Ag Device and process for determining position
US6129668A (en) * 1997-05-08 2000-10-10 Lucent Medical Systems, Inc. System and method to determine the location and orientation of an indwelling medical device

Also Published As

Publication number Publication date
EP1464918A2 (en) 2004-10-06
EP1464918B1 (en) 2016-11-16
DE10314838A1 (en) 2004-10-28

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